Finding the Fourth Proportional to 7,079,623,161.59, 9,769,880,919.58 and 3,907,807,676.62
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Solution
The fourth proportional to 7,079,623,161.59, 9,769,880,919.58 and 3,907,807,676.62 is: 5,392,775,121.75
Step by Step Solution
- Step 1: Write the proportion equation
7,079,623,161.59 : 9,769,880,919.58 = 3,907,807,676.62 : x - Step 2: Convert to fraction form
7,079,623,161.59/9,769,880,919.58 = 3,907,807,676.62/x - Step 3: Cross multiply
7,079,623,161.59x = 9,769,880,919.58 × 3,907,807,676.62 - Step 4: Simplify right side
7,079,623,161.59x = 38,178,815,657,197,985,792 - Step 5: Solve for x
x = 38,178,815,657,197,985,792/7,079,623,161.59 - Step 6: Final answer
x = 5,392,775,121.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.